The concentrations of six metals (Hg, Cd, Cu, Pb, Cr and Zn) individual total metal load (IMBI) values and its relation to condition index were determined in water, sediment and tissues of crab (Callinectes sapidus) and two fish species (Mugil cephalus and Anguilla anguilla) inhabiting Köyceğiz Lagoon System. The average distribution of the IMBI values ranged from 0.033 to 0.265. Distribution patterns of IMBI in species follow the sequence: A. anguilla > M. cephalus > C. sapidus. Results showed that there are positive relationships between species sizes and metal levels in most cases. The concentrations of Pb in muscle in the three studied species were in all cases considerably higher than the maximum levels set by law. Average Cd, Cu and Zn values in M. cephalus were also higher than the limits proposed for fish by FAO/WHO, EC and TFC. Therefore, the human consumption of all analysed species is not recommended.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s00128-017-2121-7 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Impact of cascade reservoir on the sources of organic matter in sediments of Lancang river.
iScience
January 2025
Technology R&D Center, Huaneng Lancang River Hydropower Inc., Kunming 650000, China.
The construction of dams to intercept natural rivers constitutes the most severe human activity influencing the underlying surface. This study focuses on four cascade reservoirs of the Lancang River and explores their impact on the migration of organic matter in sediments. The research reveals significant spatial variations in total organic carbon (TOC) and total nitrogen concentrations in the sediments of the four reservoirs.
View Article and Find Full Text PDFCan a single coastal tide gauge help predict internal solitary wave activity offshore.
Sci Rep
January 2025
Laboratoire d'Océanographie Physique et Spatiale (LOPS), IUEM, CNRS, Ifremer, IRD, University of Brest, 29280, Plouzané, France.
Internal solitary waves (ISWs) propagate in stratified waters, enhancing diapycnal mixing, sediment and mass transport on shelves. They have typical wavelengths of hundreds of meters and tens of minutes periods, requiring high resolution and high frequency measurements for their sampling. But such in-situ measurements are scarce and ISWs remain largely unpredictable.
View Article and Find Full Text PDFPotential risk of heavy metals release in sediments and soils of the Yellow River Basin (Henan section): A perspective on bioavailability and bioaccessibility.
Ecotoxicol Environ Saf
January 2025
North China University of Water Resources and Electric Power, Zhengzhou 450046, China.
The ecology of watersheds plays an important role in regulating regional climate and human activities. The sediment-soil system in the middle and lower reaches of the Yellow River Basin (Henan section) was explored. The spatial distribution characteristics of heavy metals (HMs) showed that tributaries, which are affected by anthropogenic activities, contain higher concentrations of HMs than the main channel.
View Article and Find Full Text PDFHumic substances modulate bacterial communities and mitigate adverse effects of temperature stress in coral reef organisms.
J Appl Microbiol
January 2025
Centre for Environmental and Marine Studies (CESAM) and Department of Biology, University of Aveiro, Aveiro, Portugal.
Aims: In the present study, we tested if terrestrially-derived humic substances (HS) could mitigate the adverse effects of elevated temperature and UVB radiation on the bacterial communities of two hard corals (Montipora digitata and Montipora capricornis), one soft coral (Sarcophyton glaucum), sediment and water. We also examined the impact of temperature, UVB radiation and HS supplementation on coral photosynthetic activity, a proxy for coral bleaching.
Methods And Results: We performed a multifactorial experiment using a randomized-controlled microcosm setup.
Spatiotemporal variations of phosphorus fraction and distribution in Sichuan section mainstem in the upper Yangtze River with impoundment of Xiangjiaba Reservoir in the lower Jinsha River.
Sci Total Environ
January 2025
College of Resource & Environment, Yibin University, Yibin 644000, China.
Sichuan section mainstem (SSM) in the upper Yangtze River (UYR) plays a crucial role in protecting the aquatic environment of the UYR and ensuring a safe water supply to the Three Gorges Reservoir. The impoundments of cascade reservoirs on the lower Jinsha River have significantly influenced sediment regime and phosphorus (P) transport in the SSM. This effect on water quality and safety remains poorly understood.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!